# PREFACE. 
To the Right Reverend J. H. Hopkins, Bishop of Vermont, I am obliged for a 
drawing of the Menobranchus maculatus, one of the most spirited and beautiful 
in the whole work. 
To Dr. Harpen of Riceborough, Georgia, I am indebted more than to any 
fo) Leone) y, 
other person for a knowledge of our southern batrachian animals, as Hyle, 
5 J 
Sirens, Salamanders, Tritons, &c. 
Dr. DeKay, State Zoologist of New York, one of the most accurate naturalists 
of our country, has rendered me great service by his observations on northern 
Salamanders, and has furnished me with many drawings, and with the description 
of a new species (Salamandra granulata). 
To Mr. J. H. Ricnarp, who succeeded Mr. Sera as draughtsman, and who 
has the general superintendence of the plates, 1 am greatly indebted for many 
beautiful drawings done from life. 
JOHN EDWARDS HOLBROOK. 
Medical College, Charleston, South Carolina, 1842. 
